/Engine/Source/Runtime/SignalProcessing/Public/DSP/VoiceProcessing.h
Several classes in VoiceProcessing are deprecated due to lack of support and lack of need. Current voice processing solutions are available through EOS and WebRTC. This filter takes a precomputed set of FIR weights in the frequency domain, and linearly converges to it. If no new weights are given and we've converged to our previous input weights, this works like a normal FFT-based FIR filter. Convergence is non-asymptotic: if no new weights are given after our number of steps until convergence, our filter is using the exact weights given.
class FAdaptiveFilter_DEPRECATED